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E.E. Barnard, in 1892, showing that a satellite passing through the shadow of Saturn's rings does not entirely disappear a fact which proves that the rings are partially transparent to the sunlight one might be tempted to ask whether Saturn itself, considering its astonishing lack of density, is not composed, at least in its outer parts, of separate particles of matter revolving independently about their center of attraction, and presenting the appearance of a smooth, uniform shell reflecting the light of the sun.

It is there that examining the vast porosity of bodies, every particle having its pores, and every particle of those particles having its own, he shows we are not certain that there is a cubic inch of solid matter in the universe, so far are we from conceiving what matter is.

Huxley and Tyndall both taught that it was the way that the ultimate particles of matter are compounded that makes the whole difference between a cabbage and an oak, or between a frog and a man. It is a hard proposition.

He was in the centre of a cyclone freighted with particles of sand. The wind roared until one might have believed he heard the crash of thunder. Dick halted, terrified, bewildered; and as he came to a standstill, it seemed to him that the clouds on every hand lowered until he could see the blue sky above.

It is almost certain that the usually fine gold got by hydraulicing in Californian canyons, in the gullies of the New Zealand Alps, and the great New South Wales drifts, is largely the result of the attrition of the boulders and gravel of moraines, which has thus freed, to a certain extent, the auriferous particles.

Quicksilver is used now in nearly all the sluices, and is the more necessary the smaller the particles of gold. The large pieces of the metal would all be caught by their specific gravity without the aid of amalgamation. The sluice-boxes having been made, and set up with the proper grade, the water is turned in.

It consists in moistening the flour by means of a liquid of some kind in order to soften the gluten and the starch, to dissolve the sugar, and to cement all the particles together, and then combining these ingredients.

Slipping from her horse's back, she groped her way forward, leading the pony, and trying to shout. For a rod or more she battled against the driving dust, then halted as before. Not another sound would the desert render up only the strange dry swishing by of the particles of stuff rasping the desert's surface as they passed and rose. "Barney!" she called, by a mighty effort. There was no response.

Davy's classical explanation assumed that different elements differ among themselves as to their electrical properties, some being positively, others negatively, electrified. Electricity and "chemical affinity," he said, apparently are manifestations of the same force, acting in the one case on masses, in the other on particles.

He held that the heat and phosphorescence produced in a low-pressure tube were caused by streams of particles, projected from the cathode with great velocity, striking the sides of the glass tube. The composition of the glass seemed to enter into this phosphorescence also, for while lead glass produced blue phosphorescence, soda glass produced a yellowish green.